Effect of tree size on symbiotic fungal diversity in tree bark
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Date
2024
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Busitema University
Abstract
Tree bark is one of the diverse ecosystems in nature that greatly contributes to biodiversity in forests since there is increasing evidence that biodiversity correlates positively with numerous ecosystem services. Trees form complex associations with a diverse array of fungi particularly within the bark ecosystem. These fungi play crucial role in tree health improvement as some of them resist potential pathogen, nutrient cycling and overall ecosystem functioning. The attribute of tree size which is a proxy of age has a significant impact on the diversity of fungus inhabiting the bark. The relationship between tree size and symbiotic fungal diversity in bark ecosystems presents an important yet poorly understood aspect of tree ecology. While existing research has documented the diverse roles played by symbiotic fungi, the specific influence of tree size on fungal diversity within the tree bark ecosystem remains a knowledge gap. Addressing this gap is essential for comprehensively understanding ecological changes and informing sustainable tree and forest management practices. In addressing this research gap, the study aims at conducting a comprehensive field study in a mixed species environment within Nagongera campus. This study examined the relationship between tree size and fungal communities on tree bark. This was achieved by first identifying the variety of tree size among the different tree species in NC. Based on measurements of tree height, ring diameter, canopy cover and growth stage. The trees were categorized as small, medium, large and extra-large. Bark samples were taken from randomly selected trees at consistent heights and analyzed. Fungal morphologies were studied to identify the various fungal species that inhabited the tree bark. The results showed a significant positive correlation between tree size and fungal diversity, with larger trees tend to have a higher number of fungal species and fungal individuals. Specifically, fungal diversity increased by 50% on trees larger than 100cm in diameter. These findings contribute to our understanding of fungal ecology and tree-fungal interactions, with implications for forest ecosystem functioning and conservation.
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Onyango, J. (2024). Effect of tree size on symbiotic fungal diversity in tree bark [Undergraduate, Research Report]. Busitema University.